- National Institute for Subatomic PhysicsNL871 papers
- Centre National de la Recherche ScientifiqueFR771 papers
- University of AmsterdamNL560 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di BolognaIT517 papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR514 papers
- University of BirminghamGB502 papers
- European Organization for Nuclear ResearchCH493 papers
- Lawrence Berkeley National LaboratoryUS484 papers
- The University of Texas at AustinUS482 papers
- Indian Institute of Technology BombayIN479 papers
- The Ohio State UniversityUS473 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR467 papers
15 papers · 2 filters
Killing spinor space-times and constant-eigenvalue Killing tensors
D. Beke, N. Van den Bergh, L. Wylleman
A class of Petrov type D Killing spinor space-times is presented, having the peculiar property that their conformal representants can only admit Killing tensors with constant eigen…
Effective approach to the problem of time: general features and examples
Martin Bojowald, Philipp A Hoehn, Artur Tsobanjan
The effective approach to quantum dynamics allows a reformulation of the Dirac quantization procedure for constrained systems in terms of an infinite-dimensional constrained system…
Modified general relativity as a model for quantum gravitational collapse
Andreas Kreienbuehl, Viqar Husain, Sanjeev S. Seahra
We study a class of Hamiltonian deformations of the massless Einstein-Klein-Gordon system in spherical symmetry for which the Dirac constraint algebra closes. The system may be reg…
The Conformal Constraint in Canonical Quantum Gravity
Gerard 't Hooft
Perturbative canonical quantum gravity is considered, when coupled to a renormalizable model for matter fields. It is proposed that the functional integral over the dilaton field s…
Probing the small distance structure of canonical quantum gravity using the conformal group
Gerard 't Hooft
In canonical quantum gravity, the formal functional integral includes an integration over the local conformal factor, and we propose to perform the functional integral over this fa…
An effective approach to the problem of time
Martin Bojowald, Philipp A Hoehn, Artur Tsobanjan
A practical way to deal with the problem of time in quantum cosmology and quantum gravity is proposed. The main tool is effective equations, which mainly restrict explicit consider…